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C72700 Copper-nickel vs. SAE-AISI P6 Steel

C72700 copper-nickel belongs to the copper alloys classification, while SAE-AISI P6 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is SAE-AISI P6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
630 to 1930

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Melting Completion (Liquidus), °C 1100
1460
Melting Onset (Solidus), °C 930
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 54
43
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 11
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 36
4.6
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 4.0
1.8
Embodied Energy, MJ/kg 62
24
Embodied Water, L/kg 350
59

Common Calculations

Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 14 to 34
22 to 68
Strength to Weight: Bending, points 15 to 26
21 to 44
Thermal Diffusivity, mm2/s 16
11
Thermal Shock Resistance, points 16 to 38
21 to 63

Alloy Composition

Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
1.3 to 1.8
Copper (Cu), % 82.1 to 86
0 to 0.25
Iron (Fe), % 0 to 0.5
92.9 to 95
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0.35 to 0.7
Nickel (Ni), % 8.5 to 9.5
3.3 to 3.8
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.1 to 0.4
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0